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A kind of aluminum alloy alkaline extrusion release agent and preparation method thereof

A technology of aluminum alloy and mold release agent, applied in the directions of additives, lubricating compositions, petroleum industry, etc., can solve the problems of difficulty in forming dense films, affecting the size and accuracy of workpieces, and easy to form accumulation layers, etc., to improve comfort, The effect of enhancing peel strength

Active Publication Date: 2021-10-22
SHANGHAI JINZHAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are certain deficiencies in the release agents used at home and abroad, for example: the ductility and film-forming properties of aluminum powder and copper powder are poor, and it is difficult to form a dense film when the amount of use is small, which affects the release effect. When it is large, it is easy to form accumulation layers, which affects the size and precision of the workpiece; the demoulding effect of molybdenum disulfide is poor, the composition is complex, and it contains organic solvents that are harmful to the environment; Causes short circuit of electrical equipment, and graphite is atomized and scattered around during high temperature extrusion, casting and forging, resulting in graphite dust pollution, which seriously endangers the health of operators; other mold release agents also accumulate on the surface of the mold Serious, inconvenient cleaning and other defects need to rely on manual scraping, which consumes a lot of labor costs
[0004] The traditional aluminum rod extrusion thimble release agent is applied manually, and the release agent contains a large amount of graphite. The working environment is extremely poor. Not only does it generate labor costs during production, but it also makes it difficult to clean the workpiece.

Method used

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  • A kind of aluminum alloy alkaline extrusion release agent and preparation method thereof
  • A kind of aluminum alloy alkaline extrusion release agent and preparation method thereof
  • A kind of aluminum alloy alkaline extrusion release agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 1000g of sodium hydroxide and dissolve it in 3000g of water, add 1000g of rosin using the heat of dissolution, keep the heating temperature not lower than 90°C, and observe that there is no obvious foreign matter, which is the rosin saline solution.

[0041] Add 5 times more water to the rosin salt solution prepared above and use it on the thimble of the aluminum alloy extrusion demoulding machine, and compare it with the original alkaline graphite emulsion demoulding agent. The aluminum sticking phenomenon of the demoulding machine thimble is obviously better than that of alkaline graphite Emulsion release agent, and the surface is easy to observe.

Embodiment 2

[0043] Weigh 1000g of potassium hydroxide and dissolve it in 1000g of water, add 1000g of rosin using the heat of dissolution, keep the heating temperature not lower than 90°C, and observe that there is no obvious foreign matter, it is the rosin saline solution.

[0044] Add 10 times more water to the rosin salt solution prepared above and use it on the thimble of the aluminum alloy extrusion demoulding machine, and compare it with the original alkaline graphite emulsion demoulding agent. The aluminum sticking phenomenon of the demoulding machine thimble is obviously better than that of alkaline graphite Emulsion release agent, and the surface is easy to observe.

Embodiment 3

[0046] Dissolve 1000g of sodium hydroxide in 7000g of water, add 900g of rosin and 700g of isophthalic acid, stir at 90-100°C until uniform and translucent, add 150g of sodium polymethacrylate, 150g of sodium lignosulfonate, 100g of AEO- 6 Continue to stir until transparent or translucent, it is an aluminum alloy alkaline extrusion mold release agent.

[0047] Add 8 times more water to the aluminum alloy extrusion mold release agent prepared above and use it on the thimble of the aluminum alloy extrusion mold release machine, and add 5 times more water to the original alkaline graphite emulsion release agent (the solid content of the stock solution is about 70%) The thimble of the demoulding machine does not stick to aluminum, and the demoulding surface of aluminum alloy is more complete than that of alkaline graphite emulsion demoulding agent, and the surface is easy to observe. It shows that its demoulding effect is better, and the usage amount is smaller at the same time. ...

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Abstract

The invention provides an aluminum alloy alkaline extrusion mold release agent, which is characterized in that it contains rosin salt, and the rosin salt accounts for 1-30% by weight of the total components. Rosin is a natural substance with natural fragrance, which can improve the comfort of the processing environment. The rosin salt prepared by the reaction of rosin and alkali has certain viscosity and lubricity and can enhance the peel strength of aluminum alloy alkaline extrusion mold release agent.

Description

technical field [0001] The invention belongs to the technical field of mold release, and relates to an aluminum alloy alkaline extrusion mold release agent and a preparation method thereof. Background technique [0002] Release agent is an important auxiliary material in metal processing extrusion, casting and forging process. It plays an important role in metal processing extrusion, casting and forging process. The molding condition, smoothness and mold life of the mold surface are related to Release agents are closely related. [0003] At present, there are certain deficiencies in the release agents used at home and abroad, for example: the ductility and film-forming properties of aluminum powder and copper powder are poor, and it is difficult to form a dense film when the amount of use is small, which affects the release effect. When it is large, it is easy to form accumulation layers, which affects the size and precision of the workpiece; the demoulding effect of molybd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M159/02C10N40/36
CPCC10M159/02C10M169/044C10N2040/36
Inventor 张乃庆蒋宁吴启东
Owner SHANGHAI JINZHAO ENERGY SAVING TECH
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